Narrowing searches based on url, author, date, and other attributes is also possible.
For instance, the query
[ Conan sourcename:Poynter ]
restricts searches for "Conan" to items from the blog "Poynter".
Examples of other operators follow:

• sourceurl:http://www.huffingtonpost.com/

items from the blog http://www.huffingtonpost.com/

• author:"Rupert Murdoch"

items by author "Rupert Murdoch"

• sourcename:"E-Media Tidbits"

items from blogs with "E-Media Tidbits" in the name

• title:substantiated

items with "substantiated" in the title

• date:01/28/10

items that appeared on 01/28/10

• body:"sharp gains"

items with "sharp gains" in the body

• date:[01/28/10 TO 02/04/10]

items appearing between 01/28/10 and 02/04/10

• link:http://www.apple.com/pr/library/2010/01/27ipad.html

items linking to http://www.apple.com/pr/library/2010/01/27ipad.html

Note: all operators that take urls will accept simple domain names, which match any item at that domain, or complete item urls.

With a Bigger Comcast May Come More Deals
— Just last month, Discovery Communications, the owner of cable networks including Animal Planet and TLC, had considered acquiring rival Scripps Networks Interactive in a deal that would have been valued at more than $10 billion. — Discovery never went ahead.

Industry Shifts May Aid Comcast in Takeover Bid
— On the face of it, the merger of the country's two largest cable companies would seem like a nonstarter, given its steep regulatory hurdles and skepticism from consumer watchdogs. — But Comcast's proposed acquisition of Time Warner Cable comes …

How Much Time Warner May Be Worth to a Suitor
— Charter Communications says it is offering a full price for Time Warner Cable. At $132.50 a share, its proposal amounts to a 40 percent premium above where Time Warner Cable's stock was trading in June, before rumors of a deal surfaced.

Oyster, a Start-Up for E-Reading, Raises $14 Million
— With Netflix soaring, investors are betting that a start-up based on the same business model — but for e-books — will succeed as well. — Oyster, which gives customers access to more than 100,000 books for $10 a month, has raised $14 million in a new round of financing.

Brash Agent at William Morris Extends Reach in IMG Merger
— Over the past two decades, Ari Emanuel has climbed — brashly, ruthlessly — into Hollywood's power center with one position in mind: king. — With a nighttime raid on his own office files at International Creative Management in 1995 …